Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12202/6439
Title: Quantum vs classical dynamics in a spin-boson system: manifestations of spectral correlations and scarring.
Authors: Santos, Lea F.
Villaseñor, David
Pilatowsky-Cameo, Saúl
Bastarrachea-Magnani, Miguel A.
Lerma, Sergio
Hirsch, Jorge G.
0000-0001-9400-2709
Keywords: Dicke model
classical chaos
quantum chaos
correlation hole
scars
Issue Date: 30-Apr-2020
Publisher: IOP Publishing ; Deutsche Physikalische Gesellschaft
Citation: Santos, Lea F. David Villaseñor, Saúl Pilatowsky-Cameo, Miguel A Bastarrachea-Magnani, Sergio Lerma, Jorge G Hirsch. (2020). Quantum vs classical dynamics in a spin-boson system: manifestations of spectral correlations and scarring. New Journal of Physics 22: 063036.
Series/Report no.: New Journal of Physics;22
Abstract: We compare the entire classical and quantum evolutions of the Dicke model in its regular and chaotic domains. This is a paradigmatic interacting spin-boson model of great experimental interest. By studying the classical and quantum survival probabilities of initial coherent states, we identify features of the long-time dynamics that are purely quantum and discuss their impact on the equilibration times. We show that the ratio between the quantum and classical asymptotic values of the survival probability serves as a metric to determine the proximity to a separatrix in the regular regime and to distinguish between two manifestations of quantum chaos: scarring and ergodicity. In the case of maximal quantum ergodicity, our results are analytical and show that quantum equilibration takes longer than classical equilibration
Description: Research article, peer-reviewed. Open Access.
URI: https://doi.org/10.1088/1367-2630/ab8ef8
https://hdl.handle.net/20.500.12202/6439
ISSN: 1367-2630
Appears in Collections:Stern College for Women -- Faculty Publications

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